azimuth circle 中文意思是什麼
azimuth circle
解釋
方位圈。-
In the first step. 2861 surface wave recordings with seismic magnitude over 5. 0 are selected under the criteria of good - wave and " intact recording ", calculating the big - circle paths, and then about 284 two - station pairs of which two stations are along the same big - circle are chosen, among them there are about 260 pairs with difference of forward azimuth angle less than 5 ?. after further optimizing, 223 pairs which perfectly cover the china area are used in the final calculation
本文首先從所收集的震級在5級以上2861條面波記錄中挑選波形好、記錄完整的資料進行預處理，計算其大園路徑，從中挑選出位於同一地震大園路徑上的雙臺地震記錄約284對，然後計算出前向方位角差，其差在5范圍以內的雙臺地震記錄約260餘對，量后對這些記錄進一步優化，選出223對對中國大陸地區覆蓋比較好的面波記錄。
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